source: downloads/tcl8.5.2/unix/tclAppInit.c @ 52

/*
 * tclAppInit.c --
 *
 *      Provides a default version of the main program and Tcl_AppInit
 *      function for Tcl applications (without Tk).
 *
 * Copyright (c) 1993 The Regents of the University of California.
 * Copyright (c) 1994-1997 Sun Microsystems, Inc.
 * Copyright (c) 1998-1999 by Scriptics Corporation.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: tclAppInit.c,v 1.17 2007/04/16 13:36:35 dkf Exp $
 */

#include "tcl.h"

#ifdef TCL_TEST

#include "tclInt.h"

extern Tcl_PackageInitProc      Procbodytest_Init;
extern Tcl_PackageInitProc      Procbodytest_SafeInit;
extern Tcl_PackageInitProc      TclObjTest_Init;
extern Tcl_PackageInitProc      Tcltest_Init;

#endif /* TCL_TEST */

#ifdef TCL_XT_TEST
extern void             XtToolkitInitialize _ANSI_ARGS_((void));
extern int              Tclxttest_Init _ANSI_ARGS_((Tcl_Interp *interp));
#endif

/*
 *----------------------------------------------------------------------
 *
 * main --
 *
 *      This is the main program for the application.
 *
 * Results:
 *      None: Tcl_Main never returns here, so this function never returns
 *      either.
 *
 * Side effects:
 *      Whatever the application does.
 *
 *----------------------------------------------------------------------
 */

int
main(
    int argc,                   /* Number of command-line arguments. */
    char **argv)                /* Values of command-line arguments. */
{
    /*
     * The following #if block allows you to change the AppInit function by
     * using a #define of TCL_LOCAL_APPINIT instead of rewriting this entire
     * file. The #if checks for that #define and uses Tcl_AppInit if it does
     * not exist.
     */

#ifndef TCL_LOCAL_APPINIT
#define TCL_LOCAL_APPINIT Tcl_AppInit
#endif
    extern int TCL_LOCAL_APPINIT _ANSI_ARGS_((Tcl_Interp *interp));

    /*
     * The following #if block allows you to change how Tcl finds the startup
     * script, prime the library or encoding paths, fiddle with the argv,
     * etc., without needing to rewrite Tcl_Main()
     */

#ifdef TCL_LOCAL_MAIN_HOOK
    extern int TCL_LOCAL_MAIN_HOOK _ANSI_ARGS_((int *argc, char ***argv));
#endif

#ifdef TCL_XT_TEST
    XtToolkitInitialize();
#endif

#ifdef TCL_LOCAL_MAIN_HOOK
    TCL_LOCAL_MAIN_HOOK(&argc, &argv);
#endif

    Tcl_Main(argc, argv, TCL_LOCAL_APPINIT);

    return 0;                   /* Needed only to prevent compiler warning. */
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_AppInit --
 *
 *      This function performs application-specific initialization. Most
 *      applications, especially those that incorporate additional packages,
 *      will have their own version of this function.
 *
 * Results:
 *      Returns a standard Tcl completion code, and leaves an error message in
 *      the interp's result if an error occurs.
 *
 * Side effects:
 *      Depends on the startup script.
 *
 *----------------------------------------------------------------------
 */

int
Tcl_AppInit(
    Tcl_Interp *interp)         /* Interpreter for application. */
{
    if (Tcl_Init(interp) == TCL_ERROR) {
        return TCL_ERROR;
    }

#ifdef TCL_TEST
#ifdef TCL_XT_TEST
    if (Tclxttest_Init(interp) == TCL_ERROR) {
        return TCL_ERROR;
    }
#endif
    if (Tcltest_Init(interp) == TCL_ERROR) {
        return TCL_ERROR;
    }
    Tcl_StaticPackage(interp, "Tcltest", Tcltest_Init,
            (Tcl_PackageInitProc *) NULL);
    if (TclObjTest_Init(interp) == TCL_ERROR) {
        return TCL_ERROR;
    }
    if (Procbodytest_Init(interp) == TCL_ERROR) {
        return TCL_ERROR;
    }
    Tcl_StaticPackage(interp, "procbodytest", Procbodytest_Init,
            Procbodytest_SafeInit);
#endif /* TCL_TEST */

    /*
     * Call the init functions for included packages. Each call should look
     * like this:
     *
     * if (Mod_Init(interp) == TCL_ERROR) {
     *     return TCL_ERROR;
     * }
     *
     * where "Mod" is the name of the module. (Dynamically-loadable packages
     * should have the same entry-point name.)
     */

    /*
     * Call Tcl_CreateCommand for application-specific commands, if they
     * weren't already created by the init functions called above.
     */

    /*
     * Specify a user-specific startup file to invoke if the application is
     * run interactively. Typically the startup file is "~/.apprc" where "app"
     * is the name of the application. If this line is deleted then no user-
     * specific startup file will be run under any conditions.
     */

#ifdef DJGPP
    Tcl_SetVar(interp, "tcl_rcFileName", "~/tclsh.rc", TCL_GLOBAL_ONLY);
#else
    Tcl_SetVar(interp, "tcl_rcFileName", "~/.tclshrc", TCL_GLOBAL_ONLY);
#endif

    return TCL_OK;
}

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */